Improvement in driers



J. L. ADAMS & J. G. BLONDIN.

DRIERS.

Patented Aug.15, 1875.

No.181,12Z.

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INVENTORS WJTNESSES ATTORNEY N. PETERS. PHOTO-LITHOGRAPHER. wAsHmGTON. DC,

' UNITED STATES PATENT OFFICE.

JAMES L. ADAMS AND JOSEPH G. BLONDIN, OF MN'IREAL, QUEBEC,

CANADA.

IMPROVEMENT IN DRIERS.

Specification forming part of Letters Patent No. 181.122, dated August15, 1876; application led July 7, isi/6.

To all whom it may concern:

Beit known that we, JAMES LAWRENCE ADAMS, of the city of Montreal,Province of Quebec, manufacturer, and JOSEPH GEORGE BLONDIN, engineer,of the same place, have invented certain new and useful Improvements inDriers for Drying Tobacco, Fruits, Renovating Feathers, 85e.; and we dohereby declare the following to be a full, clear, and exact descriptionof the same.

Our improvement is such that a great deal of time is saved by its use,and it is always certain of drying evenly, and without injuring whateversubstance or article is to be dried.

The first part of our invention relates to the construction of a drierby means of a combination of steam-heating pipes or drums, located insuch a position in a drying room or compartment that air driven throughthe intervening spaces, by means of a blower or tanning-wheel, will bethoroughly heated, and then conveyed directly to the substances orarticles to be dried, which will be arranged on suitableframes, as arecommonly used.

The second part of our invention relates to the arrangement of alever-power in combination with a device shaped like a dog, which, whenoperated by a lever, raises all the dryingframes, except the lowest inthe compartment, up a few inches, so relieving the lower one of pressurethat it may easily be removed from its place.

To better explain the nature of our invention we will refer to theaccompanying drawing, which we desire to be taken as and to form a partof this specification.

Figure l represents our invention as occupying several doors of abuilding, the drying room or compartment extending from the basement tothe upper story. Fig. 2 represents the exterior of thedrying-compartment, lying between the iloors A1 and A2 of the buildingin which the drier is located, and is the portion which is brought mostinto use, as the drying-frames are introduced at this point. Fig. 3represents a mechanism wehave provided for the purpose of raising theuppermost drying-frames in use, for the purpose of relieving the lowestone of pressure, so that it may easily be removed when desired. We

have shown only half of it, as it would appear if looking from theinside. Fig. 5 shows a vertical sectional view of the same mechanism.Fig. 4 represents an ordinary dryingframe, with the exception of thenotches V, the object of which we will hereafter describe.

Our drier may occupy either one or a number of oors. We have tested itpractically in both ways; but in the drawings we show it as occupying anumber of floors. 0n the first floor, or that portion represented underthe` dotted line A3, we have located a fan or blower, for the purpose ofdrawing in air and forcing it up through the drier. In summer the aircould be taken directly from the outside of the building; but in winterwe propose to heat the air to a moderate temperature before introducingit into the blower. This is to be done by any suitable heating apparatuslocated in the same room with the blower, either by means of heatingpipes or drums.

The air may be supplied to the room by simply opening a Window, which,after having passed through the blower or fan F, passes through the pipe'I, and from thence up through the steam-heating pipes S in thedirection of the arrow N.

We have constructed and shown the steamheating pipes S as occupying aportion of the drier below the second door or A3, and all of thatportion between the second floor A3 and third oor A2. These steam-pipesare supplied with either live or exhaust steam.

The arrangement of the steam-heating pipes is optional with theconstructer; but the idea is, of course, to produce as great aheatingsurface in as small a space as possible. We arrange the pipes asshown by the dotted lines S, which all connect with, and run into, themain pipe M, whose diameter varies, being smallest at the top andlargest at the bottom, as the pipes which connect with it at its upperend are much shorter than those which connect at its base.

In Fig. 2 we have shown that portion of the drier which lies between thefloors A1 and A2, and which contains one of the most important featuresof our invention-viz., the mechanism which is clearly shown in Figs. 3and 4, the

object of' which, as betore mentioned, is for the purpose of relievingthe lower drying frame of the weight of the upper ones. Thedrying-frames are introduced through the opening P, which is covered bya hanging door. The lower frame rests on the horizontal way H, only oneside of which is shown. We have shown just the end of the lowestdrying-frame projecting at I), there being placed at this point ahanging door similar to that shown at P. This door is directly in frontof, and on a level with, the horizontal way H. L represents the lever,by means of which the mechanism shown in Figs. 3 and 5 is operated. Whenthis lever is pushed down, it causes the bell-crank E, arranged 011 theshaft E', to raise the transverse bars G, which, being attached to theuprights C, cause them to rise in the slots I, which, being cut in awedge shape tapering toward the top, throws them forward, the smalltooth on the dog or upright C catching the second drying-frame from thebottom in the slots V, raising all above the lowest one a few inches, sothat it may easily be drawn out at the point D. When the lever isreleased, the nprights C are drawn back by means of the springs U, whichrun parallel directly under the transverse bars G, and are attached atthe lower ends of' the uprights C. The opening P being some three feetabove the ways H, and the drying-frames generally be ing kept on a levelwith the opening P, and each frame is removed from the base at D, beingreplaced by one with a fresh supply ot" material to be dried at openingP. The frames remaining in the drier acertain length of time, pass froma comparatively mild to a more intense heat, this being the trueprinciple ot' drying, as subjecting anything fresh directly to a suddenheat tends to rook or roast it. J represents a scrap-box, which islocated directly under the door at D, so that any of the scraps whichmay fall from the frames as they are being removed from the drier willfall into it, and slide down to the opening Z at its base,

where it can easily be removed.

The hot air, after passing through the drier, may he carried oli' intothe open air by means of a line entering at O, or any suitable point.

Having thus described our invention, What we claim as new, and desire tosecure by Letters Patent, is-.

l. In a drying apparatus, the combination of a fan or blower, F,steam-pipes S and M, as and for the-purposes specified.

2. In a drying apparatus, the external arrangement of openings D and P,Way H, lever L, and scrap-box J, as specified.

3. In a drying apparatus, the combination mechanism composed of shaftE', horizontal transverse bar Gr, to which it is connected by bell-crankE, slot 1 dog or upright C, provided with a claw or tooth, springs U,and lever L, all arranged substantially as and for the purposes speciedand hereinbefore mentioned.

JAMES L. ADAMS. JOSEPH G. BLONDIN.

Witnesses ARTHUR HITcHrNGs CHAMBERS, CHAs. A. HENSHAW.

